"Hassassin" dilencongkan ke sini. Untuk pembunuh upahan dalam novel Dan Brown, sila lihat Senarai watak dalam Angels & Demons#Hassassin.
Hasyasyin atau Asasin (Bahasa Arab: أساسِيّون; Bahasa Parsi:حشاشین), ialah gelaran pengikut bagi cabang Nizari dari mazhab Islam Syiah Ismailiyah semasa Zaman Pertengahan.[1] Nizari, atau Hasyasyin, sepertimana dikenali oleh musuh mereka,[2] berpecah daripada Ismailiyah Kerajaan Khilafah Fatimiyah berikutan pertikaian mengenai pewarisan pemimpin agama dan politik Khalifah Fatimiyyah Al-Mustansir.
- Lewis, Bernard (1967). The Assassins: A radical sect in Islam. New York: Basic Books. ISBN 0-465-00498-9.
- Burman, Edward (1987). The Assassins. Wellingborough: Crucible. ISBN 1-852-74027-2.
- Daftary, Farhad (1990). The Isma'ilies, Their History and Doctrines. Cambridge: Cambridge University Press. ISBN 0-521-37019-1.
- Daftary, Farhad (1995). The Assassin Legends: Myths of the Ismailis. London: I.B. Tauris. m/s. 88–127. ISBN 1-850-43950-8.
Review
- Franzius, Enno (1969). History of the Order of Assassins. New York: Funk & Wagnalls.
- Hodgson, Marshall G.S. (1955). The Secret Order of Assassins: The Struggle of the Early Nizârî Ismâʻîlîs Against the Islamic World. The Hague: Mouton. ISBN 0-8122-1916-3.
- Maalouf, Amin (1989). The Crusades Through Arab Eyes (ed. translated by Jon Rothschild). New York: Schocken Books. ISBN 0-805-20898-4.
- Polo, Marco (1903). H. Cordier (penyunting). The Book of Ser Marco Polo, volume 1 (ed. 3rd revised translated by H. Yule). London: J. Murray. m/s. 139–146.
- Silvestre de Sacy, Antoine Isaac (1818). "Mémoire sur La Dynastie des Assassins, et sur L'Etymologie de leur Nom". Memoires de sins, et sur l’Institut Royal de France. 4: 1–84.
English translation in F. Daftary, The Assassin Legends, 136-188.
- Stark, Freya (2001). The Valleys of the Assassins and Other Persian Travels. New York: Modern Library. ISBN 0-375-75753-8.
- Willey, Peter (1963). The Castles of the Assassins. London: George G. Harrap.